Product description:_x000D_ Professional RC Watt Meter is an excellent addition to your RC hobby, DC circuits, Solar system, Boat/RV & Battery Backup systems!_x000D_ This isn't just a watt meter-it's the All-In-One Meter! A power meter, a volt meter, an amp-hour meter, ammeter and energy meter. Everything all in one unit! This is the perfect troubleshooting tool. This all-in-one watt meter is indispensable for analyzing, testing and troubleshooting any DIY DC power project._x000D_ _x000D_ Features:_x000D_ The digital LCD screen shows clear crisp number readings. Connecting load end to the battery providing real?time battery charging reading._x000D_ Digital LCD screen gives clear crisp number readings. The product has extremely low power consumption, which is more efficient than almost any LED meter. It acts like a wire so doesn't affect model's performance_x000D_ Handles up to 100 amps intermittently and 50 amps continuous duty._x000D_ Connecting load end to the battery provides real-time battery charging reading._x000D_ Handles 0 to 60 volts. Works on 12, 24, 36, and 48 volt battery bank systems._x000D_ Extremely low power consumption of 36 mA. More efficient than any LED meter. _x000D_ Measure energy(wh),charge(ah), power(w),current(A) and voltage(V)._x000D_ Accurate & precise 0.01 A cuurrent and 0.01 V voltage resolutions._x000D_ Measures peak Amps, peak Watts(except for Doc Wattson) and Voltage minimum(sag)._x000D_ Rugged- handles 50A continuous and 100 A peak at 60V._x000D_ Acts like a wire so doesn't affect model's performance. Accuracy Alu-Chrom current sensing resistor, with only 0.001 Ohms resistance and circuitry that draws only 36 mA._x000D_ _x000D_ Specifications:_x000D_ Color:Blue_x000D_ Voltage:(0)V-4V-60V 0.01V (Resolution)._x000D_ Current:0-100 A peak 0.01A (Resolution)._x000D_ Power:0-6554 W 0.1W (Resolution)._x000D_ Charge:0-65 Ah 0.001Ah (Resolution)._x000D_ Energy:0-6554 wh 0.1 Wh (Resolution)._x000D_ Measurement Update period:400mS._x000D_ Signal Sampling Rate:sample/s._x000D_ Data Queue Sequence time: 2 seconds._x000D_ In Circuit Resistance:0.001 Ohms._x000D_ Operation Current: Approx.36 mA._x000D_ Size:8.3cm x 4.7cm x 2cm - 3.27inch x 1.85inch x 0.79inch_x000D_ _x000D_ Package Included:_x000D_ 1Pcs x Watt Meter